Jeffry Held

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of treating waste-activated sludge using electroporation
- Patent number 6,540,919
- Issue date Apr 1, 2003
- DH20 L.L.C.
- Jeffry Held
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for the molecular destruction of waste-activated sludge usin...
- Patent number 6,491,820
- Issue date Dec 10, 2002
- DH20 L.L.C.
- Jeffry Held
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for treating waste-activated sludge using electroporation
- Patent number 6,395,176
- Issue date May 28, 2002
- D-H2O L.L.C.
- Jeffry Held
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Method of treating waste-activated sludge using electroporation
- Publication number 20020144957
- Publication date Oct 10, 2002
- Jeffry Held
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Method and apparatus for the molecular destruction of waste-activat...
- Publication number 20020036175
- Publication date Mar 28, 2002
- Jeffry Held
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE